Blocking system for large sections of piping with a swinging flap

摘要

The system has a lever arm (8) connected with a drive shaft (3) in a torque-proof manner. The lever arm stays in effective connection with an actuating cylinder (12) for rotating the shaft that stays in connection with a swiveling flap (2) by a knuckle joint system. A drive device includes a pinion (9) that is fastened rotation-movably about a pivot bearing and the actuating cylinder stays in connection with the pinion for swiveling the pinion. A transmission element (11) is provided between the lever arm and the pinion to transfer the swivel movement of the pinion to the shaft.